Lucent Technologies Lineage
®
2000 ECS Battery Plant H569-403
5 - 6 Maintenance
Issue 4 February 1997
8. Turn on the load circuit breaker, if applicable. If the circuit
breaker trips immediately when turned on, or the fuse
blows when installed, this may be due to inrush current and
does not necessarily indicate a fault condition. Attempt to
close the circuit breaker or add another fuse a second time.
If the breaker trips again, check the wiring to the load
circuit.
9. Note that Fuse Alarm Major, FAJ (MJF) and its associated
alarms retire.
LVD/R
Contactor
Replacement
The following assumptions are made:
•
Contactor coil has failed
•
THE CONTACTOR IS OPEN
•
The rectifiers are carrying the load (off battery) with
excess capacity available for charging the batteries.
•
Battery string(s) are at a voltage below the rectifier voltage
in a state of partial or complete discharge.
•
LVD OPEN LED is lit on the distribution front panel.
The following equipment is required:
•
Socket wrench with insulated handle
•
1/2 inch socket
Procedure: (Refer to Figure 2-5 and T-83118-30 drawing)
1. Remove rectifier in position directly beneath LVD/R
contactor (position 1), if present.
2. Open LVD/fuse panel door and unplug connector P501
from J501 on LVD/Fuse board (CP5). Leave cable
dressed.
3. Disconnect and label the 5 quick connects from the
contactor coil and auxiliary switch.
4. Unbolt and remove contactor.
Warning
Before applying power to any individual load, follow the
powering up instructions as provided in the associated load
equipment documentation.